The gradient of a straight line is how steep it is. Practice determining the gradient of a straight line given two points ahead of your National 5 Maths exam with this interactive maths quiz. Brush up ...

SIAM Journal on Numerical Analysis, Vol. 21, No. 2 (Apr., 1984), pp. 352-362 (11 pages) We characterize the class CG(s) of matrices A for which the linear system Ax = b can be solved by an s-term ...